Around 3000 B.C.
so they could write letters to each other and to educate people
Hieroglyphics was found in Ancient Egypt in 3000 BCE.
If by poor Ancient Egyptians you mean the peasant farmers then they would be using oxen as draught animals.
As concerns the coloration of Egyptians in the Ancient Period, there is much controversy over this. Perhaps the clearest evidence that SOME Egyptians were black in the Ancient Period comes from paintings in Egyptian tombs and temples which show blacks as well as people of a Mediterranean coloration. There is also a minority opinion that Egyptians were predominantly black during the Ancient Period. However, most people believe that Egyptians during the Ancient Period resemble the modern Copts (who claim direct descendence from the Ancient Egyptians). It is notable that Egypt was conquered by Nubia/Kush which was a historically verified "Black" State.
Egyptians wrote using ink on papyrus sheets. They also wrote by carving hieroglyphics into stone.
Using ramps.
They practiced it by using anything they could find.
They practiced it by using anything they could find.
they made clay pots mostly
Ancient Egyptians wrote using pictures called hieroglyphics.
they solved their promblems by thinking about it and testing.
The concept of "years" to measure time began around 3000 BCE in ancient civilizations like the Sumerians and Egyptians.